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Yamasaki T, Kiyokawa Y, Munetomo A, Takeuchi Y. Naloxone increases conditioned fear responses during social buffering in male rats. Eur J Neurosci 2024. [PMID: 38644789 DOI: 10.1111/ejn.16343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/23/2024]
Abstract
Social buffering is the phenomenon in which the presence of an affiliative conspecific mitigates stress responses. We previously demonstrated that social buffering completely ameliorates conditioned fear responses in rats. However, the neuromodulators involved in social buffering are poorly understood. Given that opioids, dopamine, oxytocin and vasopressin play an important role in affiliative behaviour, here, we assessed the effects of the most well-known antagonists, naloxone (opioid receptor antagonist), haloperidol (dopamine D2 receptor antagonist), atosiban (oxytocin receptor antagonist) and SR49059 (vasopressin V1a receptor antagonist), on social buffering. In Experiment 1, fear-conditioned male subjects were intraperitoneally administered one of the four antagonists 25 min prior to exposure to a conditioned stimulus with an unfamiliar non-conditioned rat. Naloxone, but not the other three antagonists, increased freezing and decreased walking and investigation as compared with saline administration. In Experiment 2, identical naloxone administration did not affect locomotor activity, anxiety-like behaviour or freezing in an open-field test. In Experiment 3, after confirming that the same naloxone administration again increased conditioned fear responses, as done in Experiment 1, we measured Fos expression in 16 brain regions. Compared with saline, naloxone increased Fos expression in the paraventricular nucleus of the hypothalamus and decreased Fos expression in the nucleus accumbens shell, anterior cingulate cortex and insular cortex and tended to decrease Fos expression in the nucleus accumbens core. Based on these results, we suggest that naloxone blocks social buffering of conditioned fear responses in male rats.
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Affiliation(s)
- Takumi Yamasaki
- Laboratory of Veterinary Ethology, The University of Tokyo, Tokyo, Japan
| | - Yasushi Kiyokawa
- Laboratory of Veterinary Ethology, The University of Tokyo, Tokyo, Japan
| | - Arisa Munetomo
- Laboratory of Veterinary Ethology, The University of Tokyo, Tokyo, Japan
| | - Yukari Takeuchi
- Laboratory of Veterinary Ethology, The University of Tokyo, Tokyo, Japan
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Biosca-Brull J, Basaure P, Guardia-Escote L, Cabré M, Blanco J, Morales-Navas M, Sánchez-Santed F, Colomina MT. Environmental exposure to chlorpyrifos during gestation, APOE polymorphism and the risk on autistic-like behaviors. Environ Res 2023; 237:116969. [PMID: 37659636 DOI: 10.1016/j.envres.2023.116969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/04/2023] [Accepted: 08/22/2023] [Indexed: 09/04/2023]
Abstract
Autism spectrum disorder (ASD) encompasses several neurodevelopmental conditions characterized by communication and social impairment, as well as repetitive patterns of behavior. However, it can co-occur with other mental conditions such as anxiety. The massive use of chlorpyrifos (CPF) has been linked to the increased prevalence of developmental disorders. Likewise, ASD has also been closely linked to a wide variety of genetic factors. The aims of the present investigation are to study how gestational CPF exposure and APOE polymorphism affects communication skills, early development and mid-term anxiety-like behaviors, as well as, changes in gene expression related to the cholinergic system. C57BL/6J and humanized apoE3 and apoE4 homozygous mice were exposed to 0 or 1 mg/kg/day of CPF through the diet, from gestational day (GD) 12-18. In addition, a group of C57BL/6J females were injected subcutaneously with 300 mg/kg/day of valproic acid (VPA) on GD 12 and 13. This group was used as a positive control for studying some core and associated autism-like behaviors. Communication skills by means of ultrasonic vocalizations and physical/motor development were assessed during the preweaning period, whereas locomotor activity, anxiety-like behaviors and the gene expression of cholinergic elements were evaluated during adolescence. Our results showed that C57BL/6J mice prenatally exposed to CPF or VPA showed a decrease in body weight and a delay in eye opening. Communication and anxiety behavior were affected differently depending on treatment, while gene expression was altered by sex and treatment. In addition, none of the parameters evaluated in apoE transgenic mice exposed to CPF were affected, but there were differences between genotypes. Therefore, we suggest that prenatal CPF exposure and VPA produce divergent effects on communication and anxiety.
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Affiliation(s)
- Judit Biosca-Brull
- Universitat Rovira i Virgili, Research Group in Neurobehavior and Health (NEUROLAB), Tarragona, Spain; Universitat Rovira i Virgili, Department of Psychology and Research Center for Behavior Assessment (CRAMC), Tarragona, Spain; Universitat Rovira i Virgili, Center of Environmental, Food and Toxicological Technology (TECNATOX), Reus, Spain.
| | - Pia Basaure
- Universitat Rovira i Virgili, Research Group in Neurobehavior and Health (NEUROLAB), Tarragona, Spain
| | - Laia Guardia-Escote
- Universitat Rovira i Virgili, Research Group in Neurobehavior and Health (NEUROLAB), Tarragona, Spain
| | - Maria Cabré
- Universitat Rovira i Virgili, Research Group in Neurobehavior and Health (NEUROLAB), Tarragona, Spain; Universitat Rovira i Virgili, Department of Biochemistry and Biotechnology, Tarragona, Spain
| | - Jordi Blanco
- Universitat Rovira i Virgili, Research Group in Neurobehavior and Health (NEUROLAB), Tarragona, Spain; Universitat Rovira i Virgili, Center of Environmental, Food and Toxicological Technology (TECNATOX), Reus, Spain; Universitat Rovira i Virgili, Department of Basic Medical Sciences, Reus, Spain
| | - Miguel Morales-Navas
- Department of Psychology, Health Research Center (CEINSA), Almeria University, 04120, Almeria, Spain
| | - Fernando Sánchez-Santed
- Department of Psychology, Health Research Center (CEINSA), Almeria University, 04120, Almeria, Spain
| | - Maria Teresa Colomina
- Universitat Rovira i Virgili, Research Group in Neurobehavior and Health (NEUROLAB), Tarragona, Spain; Universitat Rovira i Virgili, Department of Psychology and Research Center for Behavior Assessment (CRAMC), Tarragona, Spain; Universitat Rovira i Virgili, Center of Environmental, Food and Toxicological Technology (TECNATOX), Reus, Spain.
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Yamauchi T, Yoshioka T, Yamada D, Hamano T, Ikeda M, Kamei M, Otsuki T, Sato Y, Nii K, Suzuki M, Iriyama S, Yoshizawa K, Nishino S, Ichikawa H, Miyazaki S, Saitoh A. High-frequency ultrasound exposure improves depressive-like behavior in an olfactory bulbectomized rat model of depression. Neuroreport 2022; 33:445-449. [PMID: 35703736 PMCID: PMC9154295 DOI: 10.1097/wnr.0000000000001804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/11/2022] [Indexed: 12/03/2022]
Abstract
OBJECTIVES According to previous studies, ultrasound exposure appears to be a noninvasive method for modulating brain activity related to cognition and consciousness; however, its effects on emotional states remain unclear. Therefore, an animal model is required in which the effects and effect mechanisms of ultrasound exposure can be investigated. Thus, we used olfactory bulbectomized rats as an animal model of depression and investigated their emotional state following ultrasound exposure. METHODS In male Wistar/ST olfactory bulbectomized rats, hyperemotionality was evaluated according to hyperemotionality scoring and the scores before and after 24-h ultrasound exposure were compared. Elevated plus maze (EPM) tests were also conducted after 24-h ultrasound exposure, and blood samples were collected in which plasma corticosterone concentrations were measured. RESULTS Following exposure to high-frequency (~50 kHz) ultrasound vocalizations (USVs) associated with the pleasant emotions of rats, the hyperemotionality scores of olfactory bulbectomized rats were significantly reduced. Additionally, the latency of the first entry into the open arm of the EPM was significantly decreased in USV-exposed olfactory bulbectomized rats, as were their plasma corticosterone levels. Furthermore, artificial ultrasound (50 kHz) at a similar frequency to that of USV also significantly decreased the hyperemotionality score of olfactory bulbectomized rats. CONCLUSIONS Ultrasound exposure improved depressive-like behavior in olfactory bulbectomized rats and reduced their plasma corticosterone levels. Thus, we recommend the use of olfactory bulbectomized rats as an animal model for investigating the effects and effect mechanisms of ultrasound exposure.
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Affiliation(s)
- Tsugumi Yamauchi
- Laboratory of Pharmacology, Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science
- Laboratory of Psychology, Noda Division, Institute of Arts and Sciences, Tokyo University of Science
| | - Toshinori Yoshioka
- Laboratory of Pharmacology, Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science
| | - Daisuke Yamada
- Laboratory of Pharmacology, Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science
| | - Takumi Hamano
- Laboratory of Pharmacology, Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science
| | | | | | | | | | | | | | - Satoshi Iriyama
- Laboratory of Quantum information dynamics, Department of Information Sciences, Faculty of Science and Technology, Tokyo University of Science
| | - Kazumi Yoshizawa
- Laboratory of Pharmacology and Therapeutics, Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science
| | | | - Hiroko Ichikawa
- Laboratory of Psychology, Noda Division, Institute of Arts and Sciences, Tokyo University of Science
| | - Satoru Miyazaki
- Laboratory of Bioinformatics, Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science
| | - Akiyoshi Saitoh
- Laboratory of Pharmacology, Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science
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Lozano PA, Alarabi AB, Garcia SE, Boakye ET, Kingbong HT, Naddour E, Villalobos-García D, Badejo P, El-Halawany MS, Khasawneh FT, Alshbool FZ. The Antidepressant Duloxetine Inhibits Platelet Function and Protects against Thrombosis. Int J Mol Sci 2022; 23:ijms23052587. [PMID: 35269729 PMCID: PMC8910021 DOI: 10.3390/ijms23052587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 02/23/2022] [Accepted: 02/23/2022] [Indexed: 01/27/2023] Open
Abstract
While cardiovascular disease (CVD) is the leading cause of death, major depressive disorder (MDD) is the primary cause of disability, affecting more than 300 million people worldwide. Interestingly, there is evidence that CVD is more prevalent in people with MDD. It is well established that neurotransmitters, namely serotonin and norepinephrine, are involved in the biochemical mechanisms of MDD, and consequently, drugs targeting serotonin-norepinephrine reuptake, such as duloxetine, are commonly prescribed for MDD. In this connection, serotonin and norepinephrine are also known to play critical roles in primary hemostasis. Based on these considerations, we investigated if duloxetine can be repurposed as an antiplatelet medication. Our results-using human and/or mouse platelets show that duloxetine dose-dependently inhibited agonist-induced platelet aggregation, compared to the vehicle control. Furthermore, it also blocked agonist-induced dense and α-granule secretion, integrin αIIbβ3 activation, phosphatidylserine expression, and clot retraction. Moreover duloxetine-treated mice had a significantly prolonged occlusion time. Finally, duloxetine was also found to impair hemostasis. Collectively, our data indicate that the antidepressant duloxetine, which is a serotonin-norepinephrine antagonist, exerts antiplatelet and thromboprotective effects and inhibits hemostasis. Consequently, duloxetine, or a rationally designed derivative, presents potential benefits in the context of CVD, including that associated with MDD.
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Affiliation(s)
- Patricia A. Lozano
- Department of Pharmacy Practice, Irma Lerma Rangel College of Pharmacy, Texas A&M University, Kingsville, TX 78363, USA; (P.A.L.); (A.B.A.)
| | - Ahmed B. Alarabi
- Department of Pharmacy Practice, Irma Lerma Rangel College of Pharmacy, Texas A&M University, Kingsville, TX 78363, USA; (P.A.L.); (A.B.A.)
| | - Sarah E. Garcia
- School of Pharmacy, The University of Texas at El Paso, El Paso, TX 79902, USA; (S.E.G.); (E.T.B.); (H.T.K.); (E.N.)
| | - Erica T. Boakye
- School of Pharmacy, The University of Texas at El Paso, El Paso, TX 79902, USA; (S.E.G.); (E.T.B.); (H.T.K.); (E.N.)
| | - Hendreta T. Kingbong
- School of Pharmacy, The University of Texas at El Paso, El Paso, TX 79902, USA; (S.E.G.); (E.T.B.); (H.T.K.); (E.N.)
| | - Elie Naddour
- School of Pharmacy, The University of Texas at El Paso, El Paso, TX 79902, USA; (S.E.G.); (E.T.B.); (H.T.K.); (E.N.)
| | - Daniel Villalobos-García
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, Kingsville, TX 78363, USA; (D.V.-G.); (P.B.); (M.S.E.-H.)
| | - Precious Badejo
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, Kingsville, TX 78363, USA; (D.V.-G.); (P.B.); (M.S.E.-H.)
| | - Medhat S. El-Halawany
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, Kingsville, TX 78363, USA; (D.V.-G.); (P.B.); (M.S.E.-H.)
| | - Fadi T. Khasawneh
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, Kingsville, TX 78363, USA; (D.V.-G.); (P.B.); (M.S.E.-H.)
- Correspondence: (F.T.K.); (F.Z.A.); Tel.: +1-(361)-221-0755 (F.T.K.); +1-(361)-221-0793 (F.Z.A.)
| | - Fatima Z. Alshbool
- Department of Pharmacy Practice, Irma Lerma Rangel College of Pharmacy, Texas A&M University, Kingsville, TX 78363, USA; (P.A.L.); (A.B.A.)
- Correspondence: (F.T.K.); (F.Z.A.); Tel.: +1-(361)-221-0755 (F.T.K.); +1-(361)-221-0793 (F.Z.A.)
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